Balancing-machine.



N. G; BASSETT.

BALANGING MACHINE.

APPLICATION IILEI) DEG.17. 1906.

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N. C. BASSETT. BALANC'ING MACHINE. APPLIGATION FILED DB0. 17, 1906.

atented Apr.5,1910.

3 SHEETS-SHEET 2.

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BALANCING MACHINE.

APPLICATION FILED 1330.17, 1906.

@E e Paiented Apr. 5, 191@ 3 SHEETS-SHEBT 3.

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NGRMAN C. BASSETT, GF MILVAKEE, VJSCQNSIN, ASSGNGR TO ALLIS-C-ALLEERS COIVANY, OF MLYVUKEE, VTSCGNSIN, CGRPGEATIGr-T F BALANCENG-MCHINE.

Application filed Besen-ther l?, it/98.

Specification of Letters Patent.

,To all wao/m fit may concern:

lle it known that l, lhimmn C. Bassn'r'r, a eitizen ot the Unite( States, residing at 'iiilwaukea in the eounty ot' lilwaukee and State et l'liseonsin, have invented a certain new and useful Balaneing-Machine, ot which the following is a specitieation.

rEhis invention relates to balancing machines or devices by which the diiierenee in weight between one part ot a body and another part ot said body with respeet. to au axis may be determined.

lt is nesiii'able especially in the manufacture ot' bodies .vhieh are intended to be rapidl;v rotated, to have means tor readily ascertaining which side ot the l ,dy is the heavier, or, what amounts to the same thing, to iind which side ot the body is the lighter and how much material must be added to that si-:le ot' the body, or how much material must be removed from the other side ot the body to insure that the body is balanced with respect to its axis ot rotation. 'tor e3;- ample,

rlhis invention provides a simple and convenient torni ot apparatus tor this purpose.

ln the drawings which :weoinpany this specification and which disclose an embodinient ot this invention, and on whieh the saule reference characters are used t designate the same elements in each ot the several. views,4

Figure l is a vertical section through an apparatus enibodying this invention. Fig. 2 is a plan view ot the apparatus disclosed by Fig. l. Fig. 3 is a vertical section ot' an alternative construction. Fig. #t is a pla view ofthe apparatus shown by Fig. il. Fig. 5 isa vertical section ot a second alternative 'form ot apparatus; and Fig. G is a plan view ot the apparatus as shown by Fig.

Referring to the drawings, the numeral l designates a tank adapted to contain a iiuid.v as, tor example, water; and the numeral 2 designates a tank or float adapted to be supported by theI water contained in tank l. Pipes may be arranged provided with suitable valves for supplying water to and withdrawing water by pumps or other means from the tank l., such pipes being designated by the numerals et and 5.

The numeral 6 designates guides secured to the tank l, which guides serve to locate the tank 2 and also to prevent said tank 2 from being thrown to any great extent out r l i i ot a perpendicular position. rlhe tank also provided with a tiange 200, through apertures in which bolts or other similar devices may be passed to wrve to retain the parts in proper aliuement. rllhe tank 2 is Weighted or ballasted, by being provided wi h a heavyv bottom T, as shown by l and Si, or by providing the bottoni with a weighted portion 8, shown by Fig.

ln ilig. l is shown a standard 9 fastened to the bottom et' the tank 2 and within this standard is a ,s att l0, the shat't and standard being disposed in a 'vertical position normally and revoluble with shaft 10, and supported by the standard 9 the turntable ll. iny suitable or preterred antifriction devices, such t'or example, as the antitrietion balls l2, may be placed between the standard 9 and the turntable li.

'lhe operation ot this apparatus is as tollows: pulley 1?), tor enaniple, is placed upon the turntable ll and Centered with respect to the shaft l0; is clamped to the turntable by the nut lll, engaged with the screw-threaded extremity ot the shaltI lt). The trunt'able, shaft 10 and tank 2 will tip down at that side on which located the heavier side of the pulley 13.

rllhe principle oit operation oit this apparatus is the same as though a weight were placed in a boat or on a vessel; the. vessel, or the tank in this instance, will heel over at that side which supports the excess of weight.

Illhe extent. of healing with the apparatus shown by ltig. l may be readily detern'iined by the position which the iiauge 200 takes with respeet to the bolts l5.

'E he apparatus shown by Fig. 3 Yis similar in all essential features to the apparatus shown by Fig. l except that .in this apparatus the tank 2 is provided with a deck 1G upon which th A article, as the pulley lll, is adapted to be placed, and this deek is provided with a. centrally located, upstanding, apertured boss 17, which serves as a ready means ttor centeringl the pulley with respect to the tank and the aperture in the boss permits the eut ance into the tank Q of a pipe i8 through which water .may be admitted to the interior of said tank 2, or withdrawn therefrom by a pump or other suitable apparatus. lilith this fom of apnaratus, by admitting water to or withdrawing itfrom the interior of tank 2, or by varying the water level in tank l, or by varying the water level in both the tanks l and 2, the sensitiveness of the apparatus to indicate differences of weight is increased or decreased.

The apparatus shown by Fig. 5 is in essential particulars a duplicate of' the two forms of apparatus already described, and the principle of' operation is the same except that a spring 2O is secured by one end to the deck 16 of the tank 2 and is supported at its other end by a bolt 2l which is adjustably secured to a crane 22 rotatably secured to one side of the tank l, or to any convenient support. In the use of this form of the apparatus, water may be admitted to or withdrawn from the interior of the tank 2, the water level in the tank l may be varied, and in addition the tension of the spring' 20 may be varied by means of the bolt and nut 2l, which operations tend to increase or decrease the sensitiveness of the device, t-he sensitiveness being increased the higher out of the water in the tank l the tank 2 floats, and vice versa.

The numeral 30 designates a pin which may be passed through apertures in the flange 32 of the crane and the flange Bl of' one of the supports of the crane to hold the crane in a predetermined position As stated heretofore, the principle of' operation of the several forms of apparatus shown by the drawings is the same as that governing a loaded boat or vessel. lf the load is not symmetrically placed, the boat or tank will tip and the crankiness or sensitiveness will depend, for the forms of tanks shown, upon the freeboard of the tank when supporting the weight, such, for example, as the pulley 13.

What I claiin is,-

l. The combination with a tank adapted to contain a fluid, of a Hoat adapted to be supported by the fluid within said tank, said float having means to center an object with respect thereto, and said float being provided with means to admit fluid thereto and to permit its withdrawal therefrom, and

means adapted to resist the immersion of said float in the fluid contained in said tank.

2. The combination with a tank adapted to contain a fluid, of a float adapted to be supported by the fluid within said tank, said float having means rotatable thereon for supporting above the center of buoyancy of said float a body to be investigated.

3. The combination with a tank adapted to contain a fluid, of a float adapted to be supported by the fluid within said tank, said float having means to center an object with respect thereto, and said float being provided with. means to admit fluid thereto and to permit its withdrawal therefrom, and means adapted to resist the immersion of said flfiat in the fluid contained in said tank, said tank being' provided with means to guide said float.

a. The combination with a tank adapted to contain a fluid, of a ballasted float adapted to be supported by the fluid within said tank, said float being provided with means to center an object with respect thereto, and said tank being provided with means to center said float with respect to said tank, both tank and ioat being provided with means to admit fluid thereto and to permit its withdrawal therefrom.

5. rllhe combination with a tank adapted to contain a fluid, of a ballasted float adapted to be supported by the fluid within said tank, said float being provided with means to center an object with respect thereto, and said tank being provided with means to center said float with respect to said tank, and means adapted to resist the immersion of said float in the fluid contained in said tank, both tank and lioat being' provided with means to admit fluid thereto and to permit its withdrawal therefrom.

ln testimony whereof, I afiix my signature in the presence of two witnesses.

FRANK E. BENNETT. 

